(19)

(11)

EP 1 135 918 A1

(12)

(43) Date of publication: 26.09.2001 Bulletin 2001/39 (21) Application number: 99966149.9 (22) Date of filing: 13.12.1999

(51) International Patent Classification (IPC)7: H04M 3/42 (86) International application number: PCT/US9929/453 (87) International publication number: WO 0035/175 (15.06.2000 Gazette 2000/24)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 11.12.1998 US 210521 (71) Applicant: QWEST Communications International Inc. Denver, CO 80202 (US)	(72) Inventors: DOUGHERTY, Angus, O. Westminster, CO 80234 (US) WEBB, Jerry, O. East Moline, IL 61244 (US) (74) Representative: Cabinet Hirsch  34, Rue de Bassano 75008 Paris 75008 Paris (FR)